Lubricating system



Y Aug. 11, 1931.

, H. J. MURPHY LUBRICATING SYSTEM Filed Oct. 9, 1926 Panarea Aug. 11, 1931 l Y 1,818,347

UNITED STATES PATENT Aortica nowm mammary, or lamme, MASSACHUSETTS, AssIGNon, BY :mann Assmu- Y mrs, To 1mm-E conroaATIom-or cmcaoo, Tumors, a oonromTToN or nmwm I Y Y LUnnIcaTnve s YsTmr application med amber '9, 192e. serial m. 140,517. This invention aims to provide improvepassageY a connecting the pipe system 7 ments ,in a central lubricating system and with the chamber 11, and the part 9 h as an more particularly in measuring devices for outlet passage 9a which communicates directuse in a central system. Y ly w1th apassage orpipe (not shown) leading g ln the drawings, which illustrate a preto a part to be lub cated (also not shown). 59 ferred embodiment of my invention: The expelling andmeasuring means is as- Figure 1 4is a general view of a central sembled as a unit and-is reciprocable in the lubricating system for a motor vehicle, theA chamber 11. The unit comprises. a hollow motor being shown in Vdotted lines; and part 12 s lightl smaller in diameter than the 10 Figs. 2, 3 and 4 are views of a measuring diameter of t e chamber 11. This part is 55 cup, partly in elevation, and partly in crossfully open at one end and closed at the other section,`showingthe successive steps of operaend. The last mentioned end is reduced to tion of the means within the cups after the permit an annular portion of a cup leather, lubricant in the pipe System has been placed or piston 13, to extend between the part 12 15 under pressure. Y and the wall 14 surrounding the 'chamber 11. e0

, Referring to the embodiment of my inven- A valve-presenting part 15 extends axially tion illustrated in the drawings, I havel shown Within the part 12 and is riveted to the closed Y a central lubricating system particularly, end to hold it inrassembled relation thereto. though not exclusively, adapted for lubricat- The rivet portion 16 passes through the cup 20 ing'the several bearings of they chassis of a leather 13 and isheaded over against a metal- '65 motor vehicle as shown in Fig; 1.- Y lio washer 17 l g The systemY includes a pump 1, a control Before riveting the parts together as above device 2 for starting and stopping the pump, described, a second cup washer or 'piston 18 and a lubricant pressure-controlled relief is'assembled with the part 15, so as to be sliddevice 3 all secured to the dash 4 (shown in able thereon in the chamber l9provided in 70 dotted lines) of the vehicle. The lubricant the part 12.-A A' spring 20 also surrounds the reservoir in this instance is the crankcase 5 part 15, and'normally presses the piston 18 of the motor 6. A pipe system 7 and lubriT aga-inst theV valve 21 to close the open end cant measuring devices 8 are also included in of the part 12 as shown in Fig. 2.

the system. The Vseat 22 for the valve 21 is provided 75 While the pum 1 and the two control deby the part 9, between the chamber 11 and the vices 2 and 3 may of any suitable construcoutlet passage 9a. tion and operable in any suitable manner, I When it is desirable to lubricate the bearprefertohave them constructed and operatedl ings of the chassis of the motor vehicle to along with the remainder of the system, exwhich the system is applied, the o erator 80 cept the measuring cups 8, substantially as merely operates the button 23 located) at the more fully dcribed and illustrated in my codash 4 (see F ig.' 1) and the remaining operapending application Serial No. 80,245, filed tions take place automatically untilthe pump January 9th, 1926. ceases to forcelubricant to the cups 8.

40 Each of the lubricant measuring cups 8, as As the ump begins to operate, it draws 85 shown in Figs. 2, 3 and 4,'has a body formed lubricant om the `crankcase 5 and forcesvit of two pieces 9 and 10 threaded together and under pressure through the pipe system 7 to providing therewithin a chamber 11 in which the cups 8. At first the lubricant under presoperates the meaais'for measurin and expelsure will shift the measuring and expelling ling the lubricant. The part lOas an inlet Unit in each cup into valve closing position, 90

Y cup inwardly in the eiinmo unt? Sli 2 nemen as shown in Fig. V2, nei: aireay sue? c-Y permitting passage o lubricant J@hereby inte sation. Then the iunrican pass eisaid cup but preventlng returnj and e second rectiy to the parts te be iubriceieci. s the pressure increases the Tlubriceni', passes by he piston 13 into the chamber il around the part l5. As the pressure increases,V the iubricant begins to press the 8 in each against the siouider 24, time ber 19 with iubricani, es sieren 7 After the cups have Tbeen E'liee'es aieve described, the-pump continues be raise The pressure of the iubricani in 7 until it reaches a pressure te on ate the devise 3. This @Tieni s. is cevice Q in such e Leanne? meter enel bypass the luier? system "1? "back 'in iff iescriised in my ing eppiicaiien So far ne @rie ie be iuincieal ent is reducen i ine sys ressure tile e" *S5 Wn back inte, washers i3? shift the inner pares 'the pesiiien siiewn i @i 'vv/iii be unseaec pass frein 'iie chemie passage 9e eaen cru Le inricateci. The J; .c .i reiative 'e 'the pf n lubricant 'ein the I getermineci r n n ei i en The cups are siniI eraie'gn inne eisigen? ranged if'nai; iuiJi-icz'n piston i3 infn eine turn. The piston i8 is ne sure ei ne iubricani;

cant. The parts Within ineticniij dint W1 en pressure i iiiieci and when iiie pre in each cnn iii be epe;

s puede' ei ined @sentit erce Trein eeen eup cetera W neve sim rerrecl emnommenb c Y said cup under pressure and e system piston siidable relative 'im said pisten means to permit Vlling of said cup :and igor 'ercing iubricant from said cup subsequent se opening said valvular means.

2. In a centra'iubricating system, a. inbreicanil cup, means 'or supplying lubricant 55e i ier reducingSr pressure subsequent '59e saifi cups being Mier@ a piston reciprecabe in sai cup end een structed to permit lubricant '43e pass ihereby inte said cup, a vaine operabiy cenneetei "en said piston and adapted te 1ee heid einser?. Whiie said cup is being liel Wifbh iubrieeni; and te `be opened upon the iunricenn pressure being reduced end e seceni pisisen oper ziispesed between he veiveanci saaie l is'cen perrni iiliing seie emp the iuorican; therefrom. susesen E vaine being opened by inevennennJ nl? irsz-inenzioned piston.

3. En e centred "lubricating system, e cup, means for suppiying iubricen e Cup under pressure endl fer efiucinmjice pressure subsequent seid cups y a pisen reciproca-bie in seni @up and eens'bructed to perrni; iubricen' pass iiereby ne cup? e vai-Ve epereby connected d'mson ami adepte@ fue be heid smsen iie saii cup is being iiei with inbriee' 1 an@ 'to ne opensc@` upon he iubricend; press r sein reduced and a secenc, pieten eeemivee, senrce @if lubricant suppfl; pump me v 2, pipe syslteni, a piumii'ijf ei 'inbricanc measig devices eennectefi by said pipe syst Seidl pump 'te receive inoricen; pressure ihereirein, en bly-pass ne pressure e @ein when se:

TTT: We

imeie and reievinlg the press of. the lubricant sup lied te sai cup, said cup compi'ising move. ie valve means for reventing direct passage of lubricant throng" said cup,

means permitting passe of lubricant inte Seid cup but preventing return thereof, said second mentiene means being inde nden:

ei ihes'pesion ef seid i'st mentione means, 

